djangorestframework-dataclasses v0.9

Breaking changes:

• The serializer field for dataclass fields that have a default value or default value factory, are now marked as optional (required=False).
• Marking dataclass fields with typing.Optional no longer causes the serializer fields to be optional (they will still be marked as nullable). In previous versions these fields would be optional, which broke if a field had no default value. Due to the preceding change, the common case of fields marked with typing.Optional and None as a default value, have no change in behaviour.
• Drop support for generic typing.Final type hints (without the type specified), as typing.Final was never supposed to be used in this way, and Python 3.10 will drop support for it.

Features & fixes:

• Support overriding serializer for a nested dataclass using serializer_field_mapping.
• Support overriding serializer for all nested dataclasses using serializer_dataclass_field property.
• Support partial updates of nested dataclasses.
• Support bound type variables.
• Support field generation for enumerations.
• Support specifying serializer field configuration in dataclass field metadata.
• Fix value for non-specified optional fields in validated_data on serializers with many=True.